There are several possible reasons why a refrigerator may stop making ice and dispensing water:
Water Supply Issues: The most common reason for both the ice maker and water dispenser to stop working is a problem with the water supply. Check if the refrigerator is properly connected to a water source and that the water supply valve is fully open. If there is no water supply or if the water pressure is too low, it can prevent the ice maker from filling and the water dispenser from functioning.
Frozen Water Line: If the water line supplying water to the ice maker or water dispenser is frozen, it can block the flow of water. This can happen if the refrigerator's temperature is set too low or if there's an issue with the water inlet valve. Thawing the water line or replacing the faulty valve may be necessary.
Faulty Water Inlet Valve: The water inlet valve is an electrically operated valve that controls the flow of water into the refrigerator. If it becomes faulty or clogged, it can prevent water from reaching the ice maker and dispenser. A malfunctioning water inlet valve may need to be replaced.
Ice Maker Malfunction: If the ice maker itself is not working correctly, it won't produce ice. There are various components in the ice maker system, such as the motor, thermostat, and ice mold, that can develop issues over time and require inspection or replacement.
Clogged Water Filter: Many refrigerators have water filters that need to be replaced periodically. A clogged water filter can restrict water flow, affecting both the ice maker and water dispenser.
Electrical or Control Board Problems: Electrical issues or a malfunctioning control board can disrupt the communication between the ice maker, water dispenser, and other components. This can lead to improper functioning or complete failure.
Freezer Temperature Too High: The ice maker relies on a certain temperature range to operate properly. If the freezer temperature is too high, it can affect the ice-making process. Check the freezer temperature setting to ensure it is appropriate.
To diagnose and fix the specific issue, it is recommended to consult the refrigerator's user manual, if available, or seek help from a qualified appliance repair technician. They can identify the problem and perform the necessary repairs or replacements to get your ice maker and water dispenser back to working order.